Dehumidifying and humidifying fresh air system

Abstract

The utility model relates to the technical field of fresh air treatment, and discloses a dehumidification and humidification fresh air system which comprises a shell, a first solution box, a heat exchange system, a first liquid discharge pipeline, a first liquid inlet pipeline, a first circulating water pump and a first fan. During use, the first circulating water pump is controlled to work, the first liquid inlet pipeline can extract a hydrochloric acid solution at the bottom of the first solution tank, and then the hydrochloric acid solution enters the first heat exchanger. And after being cooled by the first heat exchanger, the solution is uniformly sprayed on the top of the first solution tank through the first drainage pipeline. And then, the first fan is controlled to work, and outdoor air can enter the first solution box through the fresh air inlet and is discharged indoors through the fresh air outlet. In the flowing process of outdoor air in the first solution box, the outdoor air can make contact with the hydrochloric acid solution, and therefore heat and humidity exchange is completed. And compared with a freezing dehumidification mode, bacteria breeding can be avoided, continuous work can be achieved, and continuous dehumidification can be achieved while the air quality is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of fresh air processing, for example, to a dehumidification and humidification fresh air system. Background Art

[0002] Related art (Announcement No.: CN216346747U) discloses a fresh air dehumidifier and humidifier, including at least one pair of air inlets, at least one pair of air outlets, a heat exchange mechanism, a filter module, a humidification module, an evaporator, at least two condensers, a compressor and at least one fan. The air inlet and the air outlet are staggered on both sides of the box. The heat exchange mechanism is used to perform heat exchange and guide the air from the air inlet to the corresponding air outlet. The filter module is located after the heat exchange mechanism in the direction of air flow. The humidification module is located after the heat exchange mechanism in the direction of air flow. The evaporator and at least one condenser are located before the humidification module in the direction of air flow. The compressor is arranged adjacent to at least one air outlet. At least one fan is arranged at at least one air outlet.

[0003] In the process of implementing the above embodiments, it is found that there are at least the following problems in the related art:

[0004] The fresh air dehumidifier uses a freezing dehumidification method. When the air flows through the low-temperature surface of the evaporator, the temperature drops to below the dew point temperature, so that the water vapor in the air condenses and washes out. However, long-term use will cause the surface of the evaporator to become damp, which is easy to breed bacteria, thereby polluting the air. Moreover, dehumidification cannot be performed continuously at low temperatures, and the dehumidification effect is poor.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiment provides a dehumidification and humidification fresh air system to continuously dehumidify while ensuring air quality.

[0008] In some embodiments, a dehumidification and humidification fresh air system comprises: a shell, the shell comprising a fresh air inlet, a fresh air outlet, a return air inlet and a return air outlet; a first solution tank, located inside the shell and connected to the fresh air inlet and the fresh air outlet; a heat exchange system, installed inside the shell, the heat exchange system comprising a first heat exchanger, the first heat exchanger comprising a first solution inlet and a first solution outlet; a first drainage pipe, the two ends of the first drainage pipe are respectively connected to the top of the first solution tank and the first solution outlet; a first liquid inlet pipe, the two ends of the first liquid inlet pipe are respectively connected to the bottom of the first solution tank and the first solution outlet; a first circulating water pump, installed on the first liquid inlet pipe, used to spray the solution at the bottom of the first solution tank on the top of the first solution tank; a first fan, installed inside the shell and located at the fresh air inlet; wherein, driven by the first fan, outdoor air enters the interior of the first solution tank through the fresh air inlet and is discharged to the room from the fresh air outlet.

[0009] Optionally, the heat exchange system also includes: a compressor, including an exhaust port and an intake port; a four-way valve, including a first interface, a second interface, a third interface and a fourth interface, the exhaust port of the compressor is connected to the first interface, and the intake port of the compressor is connected to the second interface; a second heat exchanger, the second heat exchanger includes a second medium inlet, a second medium outlet, a second solution inlet and a second solution outlet, and the second medium outlet is connected to the third interface; wherein the first heat exchanger also includes a first medium inlet and a first medium outlet, the first medium inlet is connected to the fourth interface, and the first medium outlet is connected to the second medium inlet.

[0010] Optionally, it also includes: a second solution tank, located inside the shell and connected to the return air inlet and the return air outlet; a second drainage pipe, the two ends of the second drainage pipe are respectively connected to the top of the second solution tank and the second solution outlet; a second liquid inlet pipe, the two ends of the second liquid inlet pipe are respectively connected to the bottom of the second solution tank and the second solution inlet; a second circulating water pump installed on the second liquid inlet pipe, used to spray the solution at the bottom of the second solution tank on the top of the second solution tank; wherein a solution exchange channel is provided between the first solution tank and the second solution tank.

[0011] Optionally, it also includes: a flow meter, which is installed on the first liquid inlet pipeline and the second liquid inlet pipeline respectively.

[0012] Optionally, it also includes: a second fan installed inside the shell and located at the return air inlet; wherein, driven by the second fan, indoor air enters the interior of the second solution tank through the return air inlet and is discharged to the outside from the return air outlet.

[0013] Optionally, the heat exchange system further includes: a high-pressure switch installed at the exhaust port of the compressor; and a low-pressure switch installed at the intake port of the compressor.

[0014] Optionally, the heat exchange system further includes: temperature sensors respectively installed at an air inlet of the compressor and an exhaust port of the compressor.

[0015] Optionally, the heat exchange system further includes: a heat sink installed between the second medium outlet and the third interface and located at the return air outlet.

[0016] Optionally, it also includes: a fresh air inlet sensor, installed on the shell and located at the fresh air inlet; a fresh air outlet sensor, installed on the shell and located at the fresh air outlet; a return air inlet sensor, installed on the shell and located at the return air inlet; and a return air outlet sensor, installed on the shell and located at the return air outlet.

[0017] The dehumidification and humidification fresh air system provided in the embodiment of the present disclosure can achieve the following technical effects:

[0018] A dehumidification and humidification fresh air system provided in an embodiment of the present disclosure includes a housing, a first solution tank, a heat exchange system, a first liquid discharge pipe, a first liquid inlet pipe, a first circulating water pump and a first fan. The housing includes a fresh air inlet, a fresh air outlet, a return air inlet and a return air outlet, and the fresh air inlet, the fresh air outlet, the return air inlet and the return air outlet are all located on the top wall of the housing and are connected to the interior of the housing. The first solution tank is located inside the housing and is used to accommodate a hydrochloric acid solution. The first solution tank is connected to the fresh air inlet and the fresh air outlet so that outdoor air can enter the interior of the first solution tank through the fresh air inlet and be discharged from the fresh air outlet to the room. The heat exchange system is installed inside the housing and is used for cooling or heating. The heat exchange system includes a first heat exchanger, which can be used as an evaporator for evaporation and heat absorption. The first heat exchanger includes a first solution inlet and a first solution outlet, and the first solution inlet and the first solution outlet are used to enter and discharge the hydrochloric acid solution respectively. The two ends of the first liquid discharge pipe are respectively connected to the top of the first solution tank and the first solution outlet for conveying the hydrochloric acid solution. The two ends of the first liquid inlet pipe are respectively connected to the bottom of the first solution tank and the first solution outlet, and are also used to transport the hydrochloric acid solution. The first circulating water pump is installed on the first liquid inlet pipe, and is used to realize the circulation of the hydrochloric acid solution. The solution at the bottom of the first solution tank is sprayed on the top of the first solution tank, and then falls from the top of the first solution tank to the bottom of the first solution tank. The first fan is installed inside the shell and is located at the fresh air inlet to form an airflow. Driven by the first fan, outdoor air enters the interior of the first solution tank through the fresh air inlet and is discharged to the room from the fresh air outlet.

[0019] During use, the first circulating water pump is controlled to work, and the first liquid inlet pipe can extract the hydrochloric acid solution at the bottom of the first solution tank, and then enter the first heat exchanger. After cooling in the first heat exchanger, it is finally evenly sprayed on the top of the first solution tank through the first liquid discharge pipe. Thereby forming a circulating flow path of the hydrochloric acid solution from the bottom of the first solution tank to the top of the first solution tank, and then from the top of the first solution tank to the bottom of the first solution tank. Then control, control the first fan to work, and the outdoor wind can enter the interior of the first solution tank through the fresh air inlet and be discharged to the room from the fresh air outlet. In the process of the outdoor wind flowing in the first solution tank, it will come into contact with the hydrochloric acid solution, thereby completing the heat and moisture exchange. Compared with the freezing dehumidification method, it can avoid the breeding of bacteria and work continuously, and can continuously dehumidify while ensuring air quality.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0022] Figure 1 It is a front view of the internal structure of a dehumidification and humidification fresh air system provided by an embodiment of the present disclosure;

[0023] Figure 2 It is a rear view of the internal structure of a dehumidification and humidification fresh air system provided by an embodiment of the present disclosure;

[0024] Figure 3 It is a side view of the internal structure of a dehumidification and humidification fresh air system provided by an embodiment of the present disclosure;

[0025] Figure 4 It is a three-dimensional diagram of the internal structure of a dehumidification and humidification fresh air system provided by an embodiment of the present disclosure;

[0026] Figure 5 It is a three-dimensional diagram of the overall structure of a dehumidification and humidification fresh air system provided in an embodiment of the present disclosure.

[0027] Reference numerals:

[0028] 1: Shell; 01: Fresh air inlet; 02: Fresh air outlet; 03: Return air inlet; 04: Return air outlet; 2: First solution tank; 3: First heat exchanger; 4: First discharge pipe; 5: First liquid inlet pipe; 6: First circulating water pump; 7: First fan; 8: Compressor; 9: Four-way valve; 10: Second heat exchanger; 11: Second solution tank; 12: Second discharge pipe; 13: Second liquid inlet pipe; 14: Second circulating water pump; 15: Flow meter; 16: Second fan; 17: High pressure switch; 18: Low pressure switch; 19: Temperature sensor; 20: Heat sink. DETAILED DESCRIPTION

[0029] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0030] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0031] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0033] Unless otherwise stated, the term "plurality" means two or more.

[0034] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0035] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0037] Combination Figures 1 to 5As shown, the embodiment of the present disclosure provides a dehumidification and humidification fresh air system, including a housing 1, a first solution tank 2, a heat exchange system, a first liquid discharge pipe 4, a first liquid inlet pipe 5, a first circulating water pump 6 and a first fan 7. The housing 1 includes a fresh air inlet 01, a fresh air outlet 02, a return air inlet 03 and a return air outlet 04, and the fresh air inlet 01, the fresh air outlet 02, the return air inlet 03 and the return air outlet 04 are all located on the top wall of the housing 1 and are connected to the interior of the housing 1. The first solution tank 2 is located inside the housing 1 and is used to accommodate a hydrochloric acid solution. The first solution tank 2 is connected to the fresh air inlet 01 and the fresh air outlet 02 so that outdoor air can enter the interior of the first solution tank 2 through the fresh air inlet 01 and be discharged from the fresh air outlet 02 to the room. The heat exchange system is installed inside the housing 1 for cooling or heating. The heat exchange system includes a first heat exchanger 3, which can be used as an evaporator for evaporation and heat absorption. The first heat exchanger 3 includes a first solution inlet and a first solution outlet, and the first solution inlet and the first solution outlet are used to enter and discharge the hydrochloric acid solution, respectively. The two ends of the first discharge pipe 4 are respectively connected to the top of the first solution tank 2 and the first solution outlet, and are used to transport the hydrochloric acid solution. The two ends of the first inlet pipe 5 are respectively connected to the bottom of the first solution tank 2 and the first solution outlet, and are also used to transport the hydrochloric acid solution. The first circulating water pump 6 is installed on the first inlet pipe 5 to realize the circulation of the hydrochloric acid solution. The solution at the bottom of the first solution tank 2 is sprayed on the top of the first solution tank 2, and then falls to the bottom of the first solution tank 2 at the top of the first solution tank 2. The first fan 7 is installed inside the housing 1 and is located at the fresh air inlet 01 to form an airflow. Driven by the first fan 7, the outdoor wind enters the interior of the first solution tank 2 through the fresh air inlet 01 and is discharged to the room from the fresh air outlet 02.

[0038] A dehumidification and humidification fresh air system provided by the embodiment of the present disclosure controls the operation of the first circulating water pump 6, and the first liquid inlet pipe 5 can extract the hydrochloric acid solution at the bottom of the first solution tank 2, and then enter the first heat exchanger 3. After cooling by the first heat exchanger 3, it is finally evenly sprayed on the top of the first solution tank 2 through the first liquid discharge pipe 4. Thereby, a circulating flow path of the hydrochloric acid solution from the bottom of the first solution tank 2 to the top of the first solution tank 2, and from the top of the first solution tank 2 to the bottom of the first solution tank 2 is formed. Then control, control the operation of the first fan 7, and the outdoor wind can enter the interior of the first solution tank 2 through the fresh air inlet 01 and be discharged to the room from the fresh air outlet 02. In the process of the outdoor wind flowing in the first solution tank 2, it will come into contact with the hydrochloric acid solution, thereby completing the heat and moisture exchange. Compared with the freezing dehumidification method, it can avoid the breeding of bacteria, and can work continuously, and can continuously dehumidify while ensuring the air quality.

[0039] Optionally, combined Figures 1 to 4As shown, the heat exchange system also includes a compressor 8, a four-way valve 9 and a second heat exchanger 10. The compressor 8 includes an exhaust port and an air intake port for conveying gas and increasing the gas pressure. The four-way valve 9 includes a first interface, a second interface, a third interface and a fourth interface. The exhaust port of the compressor 8 is connected to the first interface, and the air intake port of the compressor 8 is connected to the second interface, which is used to switch the cooling or heating mode of the heat exchange system. The second heat exchanger 10 includes a second medium inlet, a second medium outlet, a second solution inlet and a second solution outlet, and the second medium outlet is connected to the third interface. The second heat exchanger 10 can be used as a condenser for liquefaction and heat release. Among them, the first heat exchanger 3 also includes a first medium inlet and a first medium outlet, the first medium inlet is connected to the fourth interface, and the first medium outlet is connected to the second medium inlet.

[0040] In the disclosed embodiment, the heat exchange system further includes a compressor 8, a four-way valve 9 and a second heat exchanger 10. During use, the refrigerant flows through the exhaust port, the first interface, the third interface, the second medium outlet, the second medium inlet, the first medium outlet, the first medium inlet, the fourth interface, the second interface and the air intake port in sequence. That is, the first heat exchanger 3 can condense and absorb heat, while the second heat exchanger 10 can evaporate and release heat. When the first heat exchanger 3 absorbs heat, the hydrochloric acid solution can be cooled, thereby ensuring the dehumidification effect of the hydrochloric acid solution.

[0041] Optionally, combined Figures 1 to 4 As shown, it also includes a second solution tank 11, a second liquid discharge pipe 12, a second liquid inlet pipe 13 and a second circulating water pump 14. The second solution tank 11 is located inside the housing 1 and is connected to the return air inlet 03 and the return air outlet 04, so that the indoor air can enter the second solution tank 11 through the return air inlet 03 and be discharged to the outside from the return air outlet 04. The two ends of the second liquid discharge pipe 12 are respectively connected to the top of the second solution tank 11 and the second solution outlet, and are used to transport the hydrochloric acid solution. The two ends of the second liquid inlet pipe 13 are respectively connected to the bottom of the second solution tank 11 and the second solution inlet, and are also used to transport the hydrochloric acid solution. The second circulating water pump 14 is installed on the second liquid inlet pipe 13, and is used to realize the circulation of the hydrochloric acid solution, so that the solution at the bottom of the second solution tank 11 is sprayed on the top of the second solution tank 11. Among them, a solution exchange channel is provided between the first solution tank 2 and the second solution tank 11, so that the hydrochloric acid solutions in the first solution tank 2 and the second solution tank 11 can be exchanged with each other. The low-temperature hydrochloric acid solution containing more water can be converted into a high-temperature hydrochloric acid solution containing less water.

[0042] In the disclosed embodiment, when the low-temperature hydrochloric acid solution containing more water in the first solution tank 2 enters the second solution tank 11, the second circulating water pump 14 is controlled to work, and the second liquid inlet pipe 13 can extract the hydrochloric acid solution at the bottom of the second solution tank 11, and then enter the second heat exchanger 10. After being heated by the second heat exchanger 10, it is finally sprayed evenly on the top of the second solution tank 11 through the second liquid discharge pipe 12. Thereby, a circulating flow path of the hydrochloric acid solution from the bottom of the second solution tank 11 to the top of the second solution tank 11, and from the top of the second solution tank 11 to the bottom of the second solution tank 11 is formed. Since the hydrochloric acid solution is heated, the temperature of the solution will increase, and the water therein will evaporate and precipitate and then be discharged to the outside. Thereby, it is transformed into a high-temperature hydrochloric acid solution with less water, and the regeneration of the hydrochloric acid solution is realized, so that dehumidification can be carried out continuously. At the same time, the conduction state of the four-way valve 9 can be controlled to change the flow path of the refrigerant. The water evaporated and precipitated in the hydrochloric acid solution is carried into the room with the fresh air, thereby achieving the purpose of humidification.

[0043] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a flow meter 15. The flow meter 15 is installed on the first liquid inlet pipeline 5 and the second liquid inlet pipeline 13 respectively.

[0044] In the embodiment of the present disclosure, flow meters 15 are also included, which are respectively installed in the first liquid inlet pipeline 5 and the second liquid inlet pipeline 13. The two flow meters 15 are respectively used to monitor the water flow of the first liquid inlet pipeline 5 and the second liquid inlet pipeline 13, and eliminate the blockage of the first circulating water pump 6 and the second circulating water pump 14.

[0045] Optionally, combined Figure 2 As shown, the second fan 16 is also included. The second fan 16 is installed inside the housing 1 and is located at the return air inlet 03. Driven by the second fan 16, the indoor air enters the second solution tank 11 through the return air inlet 03 and is discharged to the outside from the return air outlet 04.

[0046] In the embodiment of the present disclosure, a second fan 16 is also included which is installed inside the shell and located at the return air inlet 03. During use, the second fan 16 is controlled to work, so that the indoor air can enter the interior of the second solution tank 11 through the return air inlet 03 and be discharged to the outside from the return air outlet 04, thereby taking the additionally precipitated water vapor out to the outside.

[0047] Optionally, combined Figure 3 As shown, the heat exchange system further includes a high pressure switch 17 and a low pressure switch 18. The high pressure switch 17 is installed at the exhaust port of the compressor 8. The low pressure switch 18 is installed at the suction port of the compressor 8.

[0048] In the disclosed embodiment, the heat exchange system further includes a high-pressure switch 17 installed at the exhaust port of the compressor 8 and a low-pressure switch 18 installed at the air intake port of the compressor 8. The high-pressure switch 17 is used to monitor the pressure at the high-pressure end of the refrigeration cycle. When it is too high, it automatically cuts off the power supply of the compressor 8 to protect the system from damage. The low-pressure switch 18 is used to monitor the pressure at the low-pressure end of the refrigeration cycle. When it is too low, it also cuts off the power supply of the compressor 8 to prevent the compressor 8 from being damaged.

[0049] Optionally, combined Figure 3 As shown, the heat exchange system further includes a temperature sensor 19. The temperature sensor 19 is installed at the air inlet of the compressor 8 and the exhaust port of the compressor 8 respectively.

[0050] In the disclosed embodiment, the heat exchange system further includes temperature sensors 19 respectively installed at the air inlet and the exhaust of the compressor 8. The two temperature sensors 19 are respectively used to measure the temperatures of the air inlet and the exhaust of the compressor 8 to monitor the system operation status and prevent overheating.

[0051] Optionally, combined Figure 2 As shown, the heat exchange system further includes a heat sink 20. The heat sink 20 is installed between the second medium outlet and the third interface and is located at the return air outlet 04.

[0052] In the disclosed embodiment, the heat exchange system further includes a heat sink 20 installed between the second medium outlet and the third interface. The heat sink 20 is used to further dissipate heat for the refrigerant of the heat exchange system. In addition, the design of the heat sink 20 being located at the return air outlet 04 can accelerate the heat dissipation to the outside.

[0053] Optionally, combined Figures 1 to 5 As shown, it also includes a fresh air inlet sensor, a fresh air outlet sensor, a return air inlet sensor and a return air outlet sensor. The fresh air inlet sensor is installed on the housing 1 and is located at the fresh air inlet 01. The fresh air outlet sensor is installed on the housing 1 and is located at the fresh air outlet 02. The return air inlet sensor is installed on the housing 1 and is located at the return air inlet 03. The return air outlet sensor is installed on the housing 1 and is located at the return air outlet 04.

[0054] In the disclosed embodiment, a fresh air inlet sensor, a fresh air outlet sensor, a return air inlet sensor and a return air outlet sensor are also included, which are installed on the housing 1 and are respectively located at the fresh air inlet 01, the fresh air outlet 02, the return air inlet 03 and the return air outlet 04. The fresh air inlet sensor and the fresh air outlet sensor are used to monitor the quality of the outdoor fresh air and the processed fresh air, including humidity, temperature and particle concentration, to ensure that the indoor air is fresh and healthy. The return air inlet sensor is used to monitor the condition of the indoor circulating air as feedback for adjusting the operation of the system. The return air outlet is used to monitor the condition of the air discharged to the outside.

[0055] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A dehumidification and humidification fresh air system, characterized in that: include: A housing, the housing comprising a fresh air inlet, a fresh air outlet, a return air inlet and a return air outlet; A first solution tank is located inside the housing and is connected to the fresh air inlet and the fresh air outlet; A heat exchange system installed inside the shell, the heat exchange system comprising a first heat exchanger, the first heat exchanger comprising a first solution inlet and a first solution outlet; a first liquid discharge pipe, wherein both ends of the first liquid discharge pipe are respectively connected to the top of the first solution tank and the first solution outlet; a first liquid inlet pipe, wherein two ends of the first liquid inlet pipe are respectively connected to the bottom of the first solution tank and the first solution outlet; a first circulating water pump, installed in the first liquid inlet pipe, for spraying the solution at the bottom of the first solution tank on the top of the first solution tank; A first fan is installed inside the housing and located at the fresh air inlet; Wherein, driven by the first fan, outdoor air enters into the first solution tank through the fresh air inlet and is discharged into the room from the fresh air outlet.

2. A dehumidification and humidification fresh air system according to claim 1, characterized in that: The heat exchange system further comprises: A compressor, including an exhaust port and an intake port; A four-way valve, comprising a first interface, a second interface, a third interface and a fourth interface, wherein the exhaust port of the compressor is connected to the first interface, and the suction port of the compressor is connected to the second interface; A second heat exchanger, wherein the second heat exchanger comprises a second medium inlet, a second medium outlet, a second solution inlet and a second solution outlet, and the second medium outlet is connected to the third interface; Wherein, the first heat exchanger further includes a first medium inlet and a first medium outlet, the first medium inlet is connected to the fourth interface, and the first medium outlet is connected to the second medium inlet.

3. A dehumidification and humidification fresh air system according to claim 2, characterized in that: Also includes: A second solution tank is located inside the housing and is connected to the return air inlet and the return air outlet; a second liquid discharge pipe, wherein both ends of the second liquid discharge pipe are respectively connected to the top of the second solution tank and the second solution outlet; a second liquid inlet pipe, wherein two ends of the second liquid inlet pipe are respectively connected to the bottom of the second solution tank and the second solution inlet; a second circulating water pump, installed on the second liquid inlet pipe, for spraying the solution at the bottom of the second solution tank on the top of the second solution tank; Wherein, a solution exchange channel is provided between the first solution tank and the second solution tank.

4. A dehumidification and humidification fresh air system according to claim 3, characterized in that: Also includes: The flow meters are respectively installed on the first liquid inlet pipeline and the second liquid inlet pipeline.

5. A dehumidification and humidification fresh air system according to claim 3, characterized in that: Also includes: A second fan is installed inside the housing and located at the return air inlet; Wherein, driven by the second fan, indoor air enters into the interior of the second solution tank through the return air inlet and is discharged to the outside from the return air outlet.

6. A dehumidification and humidification fresh air system according to claim 2, characterized in that: The heat exchange system further comprises: A high-pressure switch, installed at the exhaust port of the compressor; A low pressure switch is installed at the air intake of the compressor.

7. A dehumidification and humidification fresh air system according to claim 2, characterized in that: The heat exchange system further comprises: The temperature sensors are respectively installed at the air inlet of the compressor and the exhaust port of the compressor.

8. A dehumidification and humidification fresh air system according to claim 2, characterized in that: The heat exchange system further comprises: A heat sink is installed between the second medium outlet and the third interface and is located at the return air outlet.

9. A dehumidification and humidification fresh air system according to any one of claims 1 to 8, characterized in that: Also includes: A fresh air inlet sensor is installed on the housing and located at the fresh air inlet; A fresh air outlet sensor is installed on the housing and located at the fresh air outlet; a return air inlet sensor, mounted on the housing and located at the return air inlet; The return air outlet sensor is installed on the housing and located at the return air outlet.

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